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I. Assembling the Air Spring Assembly

Refer to Figure 1.

1. Consult your User’s Manual to determine the normal ride height of your vehicle.

2. Loosely attach the 90° elbow fitting (D) to the top of the air spring. Tighten finger tight plus 1 and 1/2 turns. Becareful to tighten on the metal hex nut only. DO NOT OVERTIGHTEN.

3. Loosely attach the upper bracket (B) to the air spring (A) with two 3/8" bolts (E), two 3/8" lock washers (F),and two 3/8" flat washers (G).

4. Attach the air spring to the lower bracket (C) with two 3/8" bolts (E), two 3/8" lock washers (F), and two 3/8"flat washers (G). Leave loose at this time.

II. Attaching the Lower Bracket

Refer to Figure 1.

1. Insert two 3/8" carriage bolts (I) through the lower bracket. Attach the lower bracket to the leaf springforward of the axle by securing the carriage bolts to a clamp bar (O) underneath the leaf spring.

2. Secure the carriage bolts with two 3/8" flat washers (G) and 3/8" nyloc nuts (H). Tighten all nuts to 20 ft.lbs.

Tools Needed

DANGER: Compressed air can cause injury and damage to the vehicle and parts if it is not handled properly.For your safety, do not try to inflate the air springs until they have been properly secured to the vehicle.

7/16" and 9/16" open-end or box wrenchesCrescent WrenchRatchet with 3/8", 9/16", and 1/2" deep well sockets3/8" and 5/16" drill bits (very sharp)3/8" Nut DriverHeavy Duty DrillTorque Wrench

Hose Cutter, Razor Blade, or Sharp KnifeHoist or Floor JacksSafety StandsSafety GlassesAir Compressor, or Compressed Air SourceSpray Bottle with Dish Soap/Water Solution

IMPORTANT: Your vehicle may be equipped with a rear brake proportioning valve. Any type of load assist productcould affect brake performance. It is recommended that you check with your dealer before installing this type ofproduct. If your vehicle DOES NOT have a rear brake proportioning valve or is equipped with an anti-lock typebrake system, installation of a load assist product will have NO EFFECT ON BRAKE SYSTEM PERFORMANCE.

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III. Attaching the Upper Bracket

Refer to Figure 1.

1. Position the upper bracket (B) on the frame rail so that it isaligned front-to-rear and inboard-to-outboard. Upper andlower brackets are slotted for adjustment.

NOTE: The short end of the upper bracket must bepositioned so that it is touching the underside of the framerail (Figure 2).

2. Put the upper bracket into position on the frame rail anddrill one 1/2" hole in the side of the frame rail (Figure 3).

CAUTION: Do not drill holes in the frame before checkingfor hydraulic lines, gas lines and/or electrical wires thatmay have to be moved out of the way to either side of theframe.

3. Recheck the alignment. Using the slots in the lowerbracket, align the air spring so that it is square, verticallyand horizontally, to the upper bracket.

4. Tighten the air spring mounting bolts to 20 ft.lbs. Attachthe upper bracket using one 1/2"-13 x 1.5” bolt (J), one 1/2"flat washer (K), one 1/2" lock washer (L), and one 1/2" hexnut (M). Only one bolt is required to secure the bracket tothe frame.

IV. Installing other Air spring

1. Installation for one air spring is now complete. Continueby repeating steps II–III for the other side.

2. Proceed to step V when the second air spring is installed.

Frame Rail

Centerpunch

and drillone 1/2"

hole.

UpperBracket

Figure 3

Figure 2

Frame

UpperBracket

Short end of upperbracket must touchunderside of framerail.

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Air Line toBellows

FF

Vehicle bodyor bumper

GG

GG

1/2"

EE

DD

CC

Figure 4

Option 1Option 2

Figure 5

V. Installing the Air Lines

1. Choose a convenient location for mounting the inflationvalves. Popular locations for the inflation valve are in thewheel well flanges, in the stowage area, or under the bodyflange.

NOTE: What ever the chosen location is, make sure thereis enough clearance around the inflation valves for an airchuck.

2. Drill a 5/16" hole to install the inflation valves.

3. Cut the air line assembly (AA) in two equal lengths.

CAUTION: When cutting or trimming the air line, use ahose cutter, a razor blade, or a sharp knife. A clean, squarecut will ensure against leaks. Do not use wire cutters orscissors to cut the air line. These tools may flatten orcrimp the air line, which causes leakage around the O-ring seal inside the elbow fitting.

4. Place a 5/16" nut (GG) and a star washer (FF) on the airvalve. Leave enough of the valve in front of the nut toextend through the hole and have room for the rubberwasher (EE), flat washer (DD), and 5/16" nut (GG) and cap(CC). There should be approximately 1/2" of the valveexposed after installation to easily apply a pressure gaugeor an air chuck (Figure 4).

5. Push the inflation valve through the hole and use the rubber washer (EE), flat washer (DD), and another5/16" nut (GG) to secure it in place. Tighten the nuts to secure the assembly in place (Figure 4).

6. Route the air line along the frame to the air fitting on the air spring (Figure 5). Keep at least 6" of clearancebetween the air line and heat sources, such as the exhaust pipes, muffler, or catalytic converter. Avoidsharp bends and edges. Use the plastic tie straps (BB) to secure the air line to fixed, non-moving pointsalong the chassis. Be sure that the tie straps are tight, but do not pinch the air line. Leave at least 2" ofslack to allow for any movement that might pull on the air line.

7. On the exhaust side only, place the provided thermal sleeve (P) on the air line near the exhaust.

8. Cut off air line, leaving approximately 12" of extra air line. A clean square cut will ensure against leaks.Insert the air line into the push-to-connect air fitting.Simply push the air line into the 90° swivel fitting untilit bottoms out (9/16" of air line should be in the fitting).

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VIII. Checking for Leaks

1. Inflate the air spring to 60 p.s.i. and spray all connections and the inflation valves with a solution of 1/5

liquid dish soap and 4/5 water to check for leaks. Leaks will be spotted easily by looking for bubbles in thesoapy water.

2. After the test, deflate the springs to the minimum pressure required to restore the Normal Ride Height,but not less than 20 p.s.i.

3. IMPORTANT: Check the air pressure again after 24 hours. A 2 to 4 p.s.i. loss after initial installation isnormal. Retest for leaks if the loss is more than 5 lbs.

IX. Fixing Leaks

1. If there is a problem with the swivel fitting, then:

a. Check the air line connection by deflating the spring and removing the line by pulling the collar againstthe fitting and pulling firmly on the air line. Trim 1" off the end of the air line. Be sure the cut is clean andsquare. Reinsert the air line into the push-to-connect fitting.

b. Check the threaded connection by tightening the swivel fitting another 1/2 turn. If it still leaks, deflatethe air spring, remove the fitting, and re-coat the threads with thread sealant. Reinstall by handtightening as much as possible, then use a wrench for an additional two turns.

2. If there is a problem with the inflation valve, then:

a. Check the valve core by tightening it with a valve core tool.

b. Check the air line connection by removing the air line from the barbed type fitting. CAUTION: Do notcut it off. As this will usually nick the barb and render the fitting useless. Cut air line off a few inchesin front of the fitting and use a pair of pliers or vise-grips to pull/twist the air line off the fitting.

3. If the preceding steps have did not resolve the problem, call Air Lift Technical Support at 1-800-248-0892for assistance.

X. Troubleshooting Guide

Problems maintaining air pressure, without on-board compressor.

1. Leak test air line connections and threaded connection of the elbow into the air spring. See Section VIIIto repair.

2. Leak test the inflation valve for leaks at the air line connection or dirt or debris in the valve core. SeeSection VIII for repair.

3. Inspect air lines to be sure it is not pinched at the tie straps. Loosen or replace strap and replace leakingcomponents.

4. Inspect air line for holes and cracks. Replace as needed.

5. A kink or fold in the air line. Reroute as needed.

You have now tested for all of the most probable leak conditions that can be easily fixed. At this point theproblem is most likely a failed air spring - either a factory defect or an operating problem. Please call Air Liftat 1-800-248-0892 for assistance or a replacement air spring.

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“The Choice of the Professional Installer”

For Technical Assistance call 1-800-248-0892

Thank you for purchasing Air Lift Products

Mailing Address: Street Address:AIR LIFT COMPANY AIR LIFT COMPANYP.O. Box 80167 2727 Snow Rd.Lansing, MI 48908-0167 Lansing, MI 48917

Local Phone: (517) 322-2144Fax: (517) 322-0240

http://www.airliftcompany.com

Printed in the USA

XII. Maintenance and Operations

By following these steps, vehicle owners will obtain the longest life and best results from their airsprings.

1. Check the air pressure weekly.

2. Always maintain Normal Ride Height. Never inflate beyond 100 p.s.i.

3. If you develop an air leak in the system, use a soapy water solution to check all air line connections andthe inflation valve core before deflating and removing the air spring. (See page 8.)

4. When increasing load, always adjust the air pressure to maintain the Normal Ride Height. Increase ordecrease pressure from the system as necessary to attain Normal Ride Height for optimal ride andhandling. Remember that loads carried behind the axle (including tongue loads) require more levelingforce (pressure) than those carried directly over the axle.

5. IMPORTANT: For your safety and to prevent possible damage to your vehicle, do not exceed maximumGross Vehicle Weight Rating (GVWR), as indicated by the vehicle manufacturer. Although your airsprings are rated at a maximum inflation pressure of 100 p.s.i., this pressure may represent too great aload on some vehicles. Check your vehicle owners manual and do not exceed the maximum load listedfor your vehicle.

6. Always add air to springs in small quantities, checking the pressure frequently. Sleeves require less airvolume than a tire and inflate quickly.

7. Should it become necessary to raise the vehicle by the frame, make sure the system is at minimumpressure to reduce the tension on the suspension/brake components. Use of on–board leveling systemsdo not require deflation or disconnection.

Failure to maintain correct minimum pressure (or pressure proportional to load), bottomingout, over-extension, or rubbing against another component will void the warranty.

40 p.s.i. 100 p.s.i.

Maximum Air PressureMinimum Air Pressure

Product Use Information

Frequently asked questions

Q. Will installing air springs increase the weight ratings of a vehicle?

No. Adding air springs will not change the weight ratings (GAWR, GCWR and/or GVWR) of a vehicle. Exceeding the GVWR is dangerous and voids the Air Lift warranty.

Q. Is it necessary to keep air in the air springs at all time and how much pressure will they need?

The minimum air pressure should be maintained at all times. The minimum air pressure keeps the air spring in shape, ensuring that it will move throughout its travel without rubbing or wearing on itself.

Q. Is it necessary to add a compressor system to the air springs?

No.Airpressurecanbeadjustedwithanytypeofcompressoraslongasitcanproducesufficientpressuretoservicethe springs. Even a bicycle tire pump can be used, but it’s a lot of work.

Q. How long should air springs last?

Iftheairspringsareproperlyinstalledandmaintainedtheycanlastindefinitely.

Q. Will raising the vehicle on a hoist for service work damage the air springs?

No. The vehicle can be lifted on a hoist for short-term service work such as tire rotation or oil changes. However, if the vehicle will be on the hoist for a prolonged period of time, support the axle with jack stands in order to take the tension off of the air springs.

Tuning the air pressure

Pressure determination comes down to three things — level vehicle, ride comfort, and stability.

1. Level vehicle

Ifthevehicle’sheadlightsareshiningintothetreesorthevehicleisleaningtooneside,thenitisnotlevel(fig.1).Raise the air pressure to correct either of these problems and level the vehicle.

2. Ride comfort

Ifthevehiclehasaroughandharshrideitmaybeduetoeithertoomuchpressureornotenough(fig.2).Trydifferentpressures to determine the best ride comfort.

3. Stability

Stabilitytranslatesintosafetyandshouldbethepriority,meaningthedrivermayneedtosacrificeaperfectlylevelandcomfortableride.Stabilityissuesincluderollcontrol,bounce,diveduringbrakingandsponginess(fig.3).Tuningout these problems usually requires an increase in pressure.

Continued on pg. 2

Bad headlight aim Rough rideSway and body rollfig. 1 fig. 2 fig. 3

Thank you for purchasing Air Lift products! For technical support, please call (800) 248-0892.Air Lift Company • P.O. Box 80167, MI 48908-0167 • (517) 322-2144 • Fax: (517) 322-0240 • www.airliftcompany.com

Guidelines for adding air:1. Startwiththevehiclelevelorslightlyabove.

2. Whenindoubt,alwaysaddair.

3. Formotorhomes,startwith50-100PSIintherearbecauseitcanbesafelyassumedthatitisheavilyloaded.

4. If the front of the vehicle dives while braking, increase the pressure in the front air bags, if equipped.

5. Ifitiseversuspectedthattheairbagshavebottomedout,increasethepressure(fig.4).

6. Adjustthepressureupanddowntofindthebestride.

7. If the vehicle rocks and rolls, adjust the air pressure to reduce movement.

8. It may be necessary to maintain different pressures on each side of the vehicle. Loads such as water, fuel, andapplianceswillcausethevehicletobeheavierononeside(fig.5).Asmuchasa50PSIdifferenceisnotuncommon.

Rev. 4/5/07

Continued from pg. 1

fig. 5fig. 4Bottoming out Unlevel Level

Air Lift Company warrants its products, for the time periods listed below, to the original retail purchaser against manufacturing defects when used on catalog-listed applications on cars, vans, light trucks and motorhomes under normal operating conditions for as long as Air Lift manufactures the product. The warranty does not apply to products that have been improperly applied, improperly installed, used in racing or off-road applications, used for commercial purposes, or which have not been maintained in accordance with installation instructions furnished with all products. The consumer will be responsible for removing (labor charges) the defective product from the vehicle and returningit,transportationcostsprepaid,tothedealerfromwhichitwaspurchasedortoAirLiftCompanyforverification.

AirLiftwillrepairorreplace,atitsoption,defectiveproductsorcomponents.Aminimum$10.00shippingandhandlingchargewillapplytoallwarrantyclaims.Beforereturninganydefectiveproduct,youmustcallAirLiftat(800)248-0892intheU.S.andCanada(elsewhere,(517)322-2144)foraReturnedMaterialsAuthorization(RMA)number.ReturnstoAirLiftcanbesentto:AirLiftCompany•2727SnowRoad•Lansing,MI•48917.

Product failures resulting from abnormal use or misuse are excluded from this warranty. The loss of use of the product, loss of time, inconvenience, commercial loss or consequential damages is not covered. The consumer is responsible for installation/reinstallation (labor charges) of the product. Air Lift Company reserves the right to change the design of any product without assuming any obligation to modify any product previously manufactured.

This warranty gives you specific legal rights and you may also have other rights that vary from state-to-state. Some states do not allow limitations on how long an implied warranty lasts or allow the exclusion or limitation of incidental or consequential damages. The above limitation or exclusion may not apply to you. There are no warranties, expressed or implied including any implied warranties of merchantability andfitness,whichextendbeyondthiswarrantyperiod.Therearenowarrantiesthatextendbeyondthedescriptiononthefacehereof.Sellerdisclaims the implied warranty of merchantability. (Dated proof of purchase required.)

Air Lift 1000 ............................... Lifetime LimitedRideControl ............................... Lifetime LimitedSlamAir ...................................... Lifetime LimitedLoadLifter 5000*........................ Lifetime LimitedEasyStreet Systems .................... 1 Year Limited

Load Controller (I) ....................... 2 Year LimitedLoad Controller (II) ...................... 2 Year LimitedSmartAir ....................................... 2 Year LimitedWireless AIR................................. 2 Year LimitedOther Accessories ....................... 2 Year Limited

*formerly SuperDuty

Warranty and Returns Policy